Buttonhole-punching machine.



M. BROWN. v BUTTONHOLE PUNGHING MACHINE.

APPLIOATION FILED JULY 3, 1912.

1,057,523 Patented Apr. 1, 1913.

WITNESSES:

IN VE/V TOR 35 fazzdez Brown) a 30 A TTOR/VEY COL lllllll .ANOGRAPH c0.,WASHINGTON, D. c,

UNITED STATES PATENT OFFICE.

MANDEL BROWN, OF CHICAGO, ILLINOIS.

BUTTONHOLE-PUNCHING- MACHINE.

Application filed July 3, 1912.

T 0 all whom it may concern:

Be it known that I, MANnnL-BRowN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Iman improved machine wherein the portion of thegarment in which a button hole is to be cut, is held stationary, while acounterplate presses said portion against a cutter of suitableconfiguration to cut a button hole shaped slot in the garment.

Another object of the invention is to provide a support for thecounter-plate, adapted to hold plates of varying operative length, sothat button holes of different size may be out without exchanging thecutter.

Another object of the invention is to provide means for actuating themachine by foot power in contradistinction from hand cutters which arefrequently used in the art, and which are extremely diflicult tooperate, particularly when button holes have to be cut in heavierfabrics, like cloth for mens garments, overcoats or such like.

Vith these and other objects in view, the invention is described in thefollowing specification and illustrated in the drawings and defined inthe appended claims In the drawing: Figure 1 is a longitudinal sectionthrough a button hole cutting machine, partly in elevation; Fig. 2 is ona larger scale a horizontal section through the cutter and the means forsecuring the same in the machine; Fig. 3 is an elevation of the partshown in Fig. 2; Fig. 1 is a perspective view of the cutter blade. Fig.5 is a top plan view of a counter-plate and its support; Fig. 6 is asection through the same, showing the removing pin in elevation.

Fig. 7 is an elevation, partly in section, of modification of a supportfor the multiple counter-plate.

Fig. 8 is a top plan view thereof.

The upright 1 is a casting, preferably of a circular cross section,cored out so as to provide a hollow inner space 2, and terminating in abent head portion 3, at the top, and in a broad base plate 4, at theother end, in which holes, 5, for the reception of bolts Specificationof Letters Patent.

' Patented'Apr. 1,1913.

Serial No. 707,564.

(not shown) are provided, whereby the machine may be secured to thefloor of the workroom. At the depending end of the head portion 3, acutter 6, is fastened by means of clamping plate 7, which is detachablysecured to the head portion by screws 8 extending through the holes 9,in the cutter blade and'threaded into the head portion 3. A gage 10 isadjustably connected with the stationary cutter; thegage comprising aframe portion 11 and an angular projection 12. A clampin screw 13extends through the frame into the plate 7.

The cutter comprises a straight portion 13, provided with holes 9 forthe passage of screws 8, and a circular, preferably tapering portion 14,adapted to cut the enlarged portion of a button hole, as will bewellunderstood by persons skilled in the art. The circular and straightportions are sharpened at their lower end to provide a cutting edge 15.The clamping plate 8 has a suitable recess 16, in'which the taperingportion 1 1 is secured when the parts are clamped together.

A counter-plate support 17 is pivotally secured at 18 to the upright,and terminates in a seat 19 for the counter-plate 20. The latter ispreferably circular to conform with the circular recess ofseat 19, sothat the counter-plate may be inserted into its seat and centered withrespect thereto by rotating the plate until it is in proper position. Itis then locked against rotation in this position by a pin 21, projectingfrom the seat into a recess 22 of theplate. The latter comprises araised portion 23 and a lower oifset portion 24. When the counter-platesupport is advanced toward the cutter, the raised portion only comesinto operative engagement with the cutter6. The latter will then punch aslot corresponding to the length of the line of contact of the raisedportion of the counter-plate with the edge, while the offset por tionremains out of contact.

A pin, 27, is slidably'disposed in an aper-' ture, 28, of thecounter-plate support and is provided with a head, 29, which holds thepin from dropping out of the aperture.

l/Vhen it is desired to remove a counter-plate from its seat, the pin27, is pushed upwardly, engaging thereby the lower face of the insertedcounter-plate and forcing the same out of the seat.

When it is desired to cut button hole slots of a different length, othercounterplates may be inserted which have the raised 36, alternating withrecesses 37. The raised portions 36 have different lengths, so that byrotating the counter-plate 30, on this support, a raised portion ofsuitable length may be brought into opposition with the cutter blade 6,and uponactuating the support the respectiveraised portion will bebrought into operative position with respect to the blade. For thepurpose of locking the multiple counter-plate 30, in adjusted position,a spring-controlled pin 50, is provided, which extends through a tine 32of the support 31, and projects into one of the apertures 39, providedin the plate 30. These apertures 39 are disposed at equal distances fromthe center of the pin and in suitable posit-ion with respect to each ofthe raised portions 36, so that the plate is locked when a raisedportion is opposed to and parallel with the edge of the cutter blade. Bywithdrawing the spring-controlled pin 50 from the respective aperture39, of the plate, a further rotation of the plate may be effected. Anextension 40, on- I the support 17 projects into the hollow space 2, ofthe upright, and is connected by means of the link 41, with a lever 42,pivoted at 43, to the upright 1, and provided with a treadle portion 14,at its projecting end. For the purpose of automatically restoring thelever 42 to initial position when the pressure thereon is eased, aspring 15, is connected with the lever, the other end of the springbeing connected to a hook A6, which is threaded into the metal of the upright. r

The operation of the device is as follows: A counter-plate having asuitable operative length, is brought into opposition with respect tothe cutter blade, 6. The gage 10 on the blade 6, is adjusted inaccordance with the distance which the button holes shall places wherebutton holes are to be provided in the garment are usually marked withchalk lines or in some other suitable manner on the fabric. The operatorholds the fabric with the marked portion against the stationary cutter,6, and depresses the treadle tet with his foot, whereby the support 17or 31, and the counter-plate thereon,

is oscillated toward the edge, which in this manner produces a slot inthe garment, having an enlarged end. Upon the release of the treadle 14,the counter-plate is withdrawn from engagement with thegarment and thelatter may be shifted so as to bring another marked line in engagementwith the cutting edge 15.

I claim:

1. A button hole cutting machine comprising a standard having adepending cutter support, a cutter removably secured thereto andprojecting downward, a counter plate support below the cutter supporthav ing a circular recessed seat in its upper face, provided with acentral opening extending through the support and an eccentricallylocated, upwardly projecting pin, a movable pin in the central opening,and a counter plate rotatably adjustable in said recessed seat, saidcounter plate having a portion of its upper surface cut away to shortenthe operative surface opposed to the cutter.

2. A button hole cutting machine comprising a hollow standard having ahollow bent head portion, a cutter rigidly secured 9p to said headportion and having the cut ting edge directed downwardly, a gage ad-vjustably secured to the head, means for holding said gage parallel tothe cutting 2 edge, a counter-plate support pivotally mounted on thestandard and projecting intojthe interior thereof, another'portion ofsaid counter-plate support projecting into opposition to said cutter, arotatably adjustable counter-plate carried by said support, saidcounter-plate having surface portions at different distances from thecutting edge, a treadle pivotally mounted in said standard andprojecting into opposite direction with respect to said counter-platesupport, and a link connecting said treadle inside the standard withsaid support.

Signed at Chicago, this 28th day of June, 1912.

MANDEL BROWN.

Witnesses L. MARTI-IAND, CARL SIEGMUND.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C,

